US9004267B2 - Conveying system sealed off from the surrounding atmosphere - Google Patents

Conveying system sealed off from the surrounding atmosphere Download PDF

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Publication number
US9004267B2
US9004267B2 US14/348,535 US201214348535A US9004267B2 US 9004267 B2 US9004267 B2 US 9004267B2 US 201214348535 A US201214348535 A US 201214348535A US 9004267 B2 US9004267 B2 US 9004267B2
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United States
Prior art keywords
conveying
cells
sealing
cell
disposed
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Active
Application number
US14/348,535
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English (en)
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US20140311870A1 (en
Inventor
Guido Kirbach
Matthias Moritz
Christian Niedzwiedz
Frank Reddemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aumund Fordererbau GmbH and Co KG Maschinenfabrik
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Aumund Fordererbau GmbH and Co KG Maschinenfabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Aumund Fordererbau GmbH and Co KG Maschinenfabrik filed Critical Aumund Fordererbau GmbH and Co KG Maschinenfabrik
Assigned to AUMUND FORDERTECHNIK GMBH reassignment AUMUND FORDERTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIRBACH, Guido, MORITZ, MATTHIAS, NIEDZWIEDZ, Christian, REDDEMANN, Frank
Publication of US20140311870A1 publication Critical patent/US20140311870A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/12—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element
    • B65G17/123—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element arranged to keep the load-carriers horizontally during at least a part of the conveyor run
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/32—Individual load-carriers
    • B65G17/36—Individual load-carriers having concave surfaces, e.g. buckets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/08—Protective roofs or arch supports therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2812/00—Indexing codes relating to the kind or type of conveyors
    • B65G2812/02—Belt or chain conveyors
    • B65G2812/02267—Conveyors having endless traction elements
    • B65G2812/02415—Conveyors having endless traction elements with load-carrying surfaces supported by traction means
    • B65G2812/02613—Conveyors having endless traction elements with load-carrying surfaces supported by traction means the load-carrying surfaces being separated from each other, e.g. individual load carriers
    • B65G2812/02673—Conveyors having endless traction elements with load-carrying surfaces supported by traction means the load-carrying surfaces being separated from each other, e.g. individual load carriers the load-carriers being arranged above, between or beside the traction means
    • B65G2812/02683—Conveyors having endless traction elements with load-carrying surfaces supported by traction means the load-carrying surfaces being separated from each other, e.g. individual load carriers the load-carriers being arranged above, between or beside the traction means and fixed or non-movably linked to the traction means
    • B65G2812/02762—Load-carriers
    • B65G2812/02772—Plates or buckets

Definitions

  • the invention relates to a conveying system, in particular bucket conveyors or cell conveyors, with conveying cells for accommodating in particular hot bulk goods or lumpy conveying material, said conveying cells comprising a bottom, a front wall and a rear wall in the conveying direction of the conveying system and side walls connecting the latter, wherein the conveying cells open at the top are shielded from the surrounding atmosphere by means of a stationary and gas-tight top cover that spans the open surface of the conveying cells and by means of stationary and gas-tight side covers disposed on both sides of the conveying cells and a protective gas is introducible into the interior enclosed by the top cover and the side covers.
  • a conveying system with the aforementioned features is known from WO 2007/065582 A1.
  • the conveying elements of the conveying system which are constituted in the form of conveying cells or conveying buckets which in each case comprise a bottom, a front wall and a rear wall in the conveying direction and side walls connecting the latter and which are connected by chains as traction members, slide on rails by means rollers fitted laterally to said conveying elements.
  • a top cover and mutually opposite side covers are fitted above and at the sides of the conveying elements in each case in a stationary arrangement, said covers shielding the conveying elements running inside the covers from the surrounding atmosphere and thus creating on the one hand a thermal insulation of a hot or warm conveyed material and on the other hand enabling the generation of a protective gas atmosphere in the interior of the covers by the introduction of a suitable protective gas, in order to prevent undesired reactions, in particular oxidation, in the conveyed material.
  • the stationary side covers are disposed in the plane of the lateral rollers and end at a distance above the latter.
  • the problem underlying the invention is to improve the shielding of the conveying elements from the surrounding atmosphere in a conveying system with the generic features.
  • the invention makes provision such that both the sealing elements shielding intermediate spaces existing between the conveying cells in the conveying direction from the surrounding atmosphere and also sealing elements projecting laterally on both sides beyond the side walls of the conveying cells and in each case forming a sealing gap with the lower edge of the stationary side covers are disposed in the bottom region of the conveying cells lying opposite the top cover.
  • the stationary cover parts such as the top cover and side covers and on the other hand by the sealing elements each moving along with the conveying cells.
  • the individual sealing elements each form a sealing gap with the stationary side covers that should be set as small as possible.
  • the sealing elements fitted on the individual conveying cells are opened with respect to one another and, to this extent, do not hinder the deflection of the conveying cells in the region of the deflection wheels.
  • the sealing between the individual conveying cells is improved by the fact that provision can be made such that the rear wall of each conveying cell is disposed displaced forwards in the conveying direction with respect to the—in the conveying direction—rear end of the two side walls and the front wall of the following conveying cell engages between the side walls of the conveying cell in front, wherein the side walls of the conveying cell in front and of the following conveying cell overlap in a partial region.
  • each conveying cell comprises at its upper edge a bent-off portion projecting from the front wall in the direction of the conveying cell in front, engaging over the intermediate space to the conveying cell in front and extending over the upper edge of the rear wall of the conveying cell in front.
  • an angled sealing plate is in each case fitted as a sealing element to the two side walls of each conveying cell, the leg of said sealing plate projecting from the side walls forming the sealing gap with the lower edge of the stationary side covers.
  • each angled sealing plate fitted to a side wall is disposed at a distance from the—in the conveying direction—front edge of the side wall, said distance corresponding to the overlapping of the side walls of adjacent conveying cells, so that the projecting legs of the sealing plates on the side walls of successive conveying cells form a continuous run.
  • sealing plates lying opposite the top cover and moving along with the conveying cells are disposed at the underside of the conveying cells, said sealing plates, in the form of a continuous belt mat, shielding the conveying cells and the intermediate spaces existing between the latter from the surrounding atmosphere and projecting on both sides beyond the side walls and thus forming the sealing gap with the lower edge of the stationary side covers.
  • the conveying cells are conveyed on both sides by means of rollers on rails disposed outside the conveying cells, wherein the side covers are disposed inside the distance between the mutually opposite rollers and form here the sealing gap with the sealing elements.
  • the possibility of a connection to the sealing elements moving along with the conveying cells is provided by the shifting of the side covers inwards.
  • the traction member is constituted as a chain
  • the chain link plates whereof are each fastened to the conveying cells by means of angle brackets fixed to the bottom region of the conveying cells.
  • sealing elements constituted as sealing plates
  • FIG. 1 shows, in a diagrammatic front view, a frame with a conveying system disposed therein and comprising conveying elements running on lateral rails,
  • FIG. 2 shows, in a magnified representation corresponding to FIG. 1 , the assignment of a side cover, a roller and a detail of a conveying cell showing a sealing plate as a sealing element,
  • FIG. 3 shows, in a side view, another embodiment of an individual conveying cell with sealing elements fitted thereto
  • FIG. 4 shows, in a side view, a sequence of two conveying cells constituted according to the representation in FIG. 3 ,
  • FIG. 5 shows, in a representation corresponding to FIG. 2 , the assignment of the conveying cell represented in FIG. 3 and FIG. 4 to the side cover and roller.
  • FIG. 1 a frame 10 with outer upright legs 11 , between which transverse supports 12 run, emerges from FIG. 1 .
  • Two rails 13 disposed at a distance from one another and extending in the longitudinal direction of the conveying system are mounted on transverse supports 12 , on which rails conveying cells 14 constituted in a manner yet to be described run, said conveying cells serving to transport preferably hot bulk goods and hot lumpy conveying material.
  • Conveying cells 14 are constituted trough-like with an open surface and comprise side walls 15 and a bottom 16 .
  • a top cover 17 is provided, which is supported by upright legs 11 .
  • Side covers 18 laterally enclosing conveying cells 14 are fitted to top cover 17 , said side covers each being lined with an insulating layer 19 on their inner side facing conveying cells 14 .
  • lateral rollers 20 each running on rails 13 are disposed either on each conveying cell or on each xth conveying cell in order to support conveying cells 14 , to which rollers vertical supports plates 21 are affixed, on which bottom 16 of conveying elements 14 rests.
  • a sealing plate 22 lying opposite top cover 17 is disposed between support plates 21 and bottom 16 of a conveying cell 14 , said sealing plate forming a sealing gap 23 with the lower end of stationary side cover 18 hanging down in each case from top cover 17 .
  • side covers 18 are disposed inside the distance between mutually opposite rollers 20 , so that sealing gap 23 arises in each case between sealing plate 22 moving along with assigned conveying cell 14 and the lower end of stationary side covers 18 .
  • traction means 25 in the form of a chain are provided on both sides of conveying cells 14 , outer chain link plates 26 whereof are connected, in each case by means of an angle bracket 24 carried by said chain link plates, to sealing plate 22 and thus also to bottom region 16 of conveying cells 14 .
  • angle bracket 24 for supporting chain link plates 26 , is shifted so far outwards in the direction of roller 20 that the seating of angle bracket 24 is shifted outside the region lying at actual bottom 16 of conveying cell 14 , so that the thermal load on angle bracket 24 due to the hot material lying on bottom 16 is reduced.
  • a central chain or a chain with link plates angled off on both sides can also be used for the movement of conveying cells 14 .
  • sealing plates 22 fitted in each case to conveying cells 14 extend in the longitudinal direction of the conveying system also over the intermediate spaces that may exist between conveying cells 14 , so that a kind of continuous belt mat laid beneath conveying cells 14 is formed, which ensures a complete cover of the underside of conveying cells 14 against the surrounding atmosphere.
  • FIGS. 3 to 5 Another example of embodiment of the invention is represented in FIGS. 3 to 5 , wherein individual conveying cells 14 are provided, which are sealed off against one another in each case by means of separate sealing elements.
  • each conveying cell 14 comprises, in addition to its bottom 16 and side walls 15 , a front wall 30 pointing in the conveying direction and an opposite-lying rear wall 31 , wherein an intermediate space 32 arises between individual conveying cells 14 .
  • each conveying cell 14 there is disposed at its front wall 30 a sealing plate 34 projecting therefrom and at its rear wall 31 a sealing plate 35 projecting therefrom, the arrangement of said sealing plates being made in such a way that front sealing plate 34 fixed to front wall 30 of the one conveying cell 14 overlaps with rear sealing plate 35 fixed to rear wall 31 of conveying cell 14 in front, as can be seen from FIG. 3 .
  • front wall 30 of each conveying cell 14 comprises at its upper edge a bent-off portion 33 projecting from front wall 30 in the direction of conveying cell 14 in front and engaging over intermediate space 32 to conveying cell 14 in front, said bent-off portion extending over the upper edge of rear wall 31 of conveying cell 14 in front.
  • each conveying cell 14 is disposed displaced forwards in the conveying direction by a region 37 with respect to the—in the conveying direction—rear end of respective side walls 15 , wherein front wall 30 of a following conveying cell 14 engages in each case between side walls 15 of conveying cell 14 in front and side walls 15 of successive conveying cells 14 overlap by a partial region. Intermediate space 32 in each case between two conveying cells 14 is thus completely sealed off.
  • an angled sealing plate 38 is fitted to the outer side of each side wall 15 , outwardly projecting leg 39 of said sealing plate forming sealing gap 23 with the lower edge of stationary side covers 18 in the same way as described in respect of the example of embodiment represented in FIGS. 1 and 2 in respect of sealing plate 22 .
  • each angled sealing plate 38 is disposed at a distance 40 from the front edge of each side wall 15 , so that, when conveying cells 14 are pushed into one another, projecting legs 39 of angled sealing plates 38 fitted to individual conveying cells 14 form a continuous run, which ensures a correspondingly continuous seal with respect to the lower edge of stationary side covers 18 .
  • rollers 20 are likewise provided for the guidance of individual conveying cells 14 .
  • Angle brackets 24 for supporting chain link plates 26 are also fitted to bottom 16 of each conveying cell 14 , said angle brackets however being disposed beneath the interior of conveying cell 14 in the example of embodiment represented.
  • bottom 16 of each conveying cell 14 is constituted false-bottomed with two bottom plates 16 a and 16 b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Framework For Endless Conveyors (AREA)
  • Chain Conveyers (AREA)
  • Building Environments (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Pinball Game Machines (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
US14/348,535 2011-09-28 2012-09-27 Conveying system sealed off from the surrounding atmosphere Active US9004267B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202011051470U 2011-09-28
DE202011051470.6 2011-09-28
DE202011051470U DE202011051470U1 (de) 2011-09-28 2011-09-28 Förderanlage mit Abdichtung gegen die Umgebungsatmosphäre
PCT/EP2012/069039 WO2013045529A1 (de) 2011-09-28 2012-09-27 Förderanlage mit abdichtung gegen die umgebungsatmosphäre

Publications (2)

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US20140311870A1 US20140311870A1 (en) 2014-10-23
US9004267B2 true US9004267B2 (en) 2015-04-14

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US14/348,535 Active US9004267B2 (en) 2011-09-28 2012-09-27 Conveying system sealed off from the surrounding atmosphere

Country Status (8)

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US (1) US9004267B2 (ko)
KR (1) KR101701579B1 (ko)
CN (1) CN104105936B (ko)
DE (1) DE202011051470U1 (ko)
MY (1) MY167910A (ko)
RU (1) RU2614912C2 (ko)
UA (1) UA111502C2 (ko)
WO (1) WO2013045529A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114370754B (zh) * 2022-01-18 2023-05-30 常州君合科技股份有限公司 步进箱式立体烧结炉

Citations (9)

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US3367644A (en) * 1966-02-07 1968-02-06 Mcdowell Wellman Eng Co Liquid trough seal
US3381949A (en) * 1965-11-26 1968-05-07 Mcdowell Wellman Eng Co Floating seal for a travelling grate machine
US3393904A (en) * 1965-07-02 1968-07-23 Huntington Heberlein And Compa Travelling grate sintering apparatus and the like
US3744777A (en) * 1969-10-20 1973-07-10 F Marsh Sintering machines
US3795305A (en) * 1973-01-22 1974-03-05 Universal Ind Bucket conveyor system
US4129209A (en) * 1976-01-27 1978-12-12 Friedrich Mayfeld Bucket elevator
US4408987A (en) * 1982-01-20 1983-10-11 Dravo Corporation Circular traveling grate machine for process requiring minimum gas leakage
US4825561A (en) * 1984-05-29 1989-05-02 Owens-Corning Fiberglas Corporation Curing oven apparatus
WO2007065582A2 (de) 2005-12-07 2007-06-14 Siemens Vai Metals Technologies Gmbh & Co Förderanlage, anlagenverbund und verfahren zur kopplung von metallurgischen verfahren

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CN2128723Y (zh) * 1992-03-26 1993-03-24 尚合运 回转支承机械化水泥立窑
RU2165881C2 (ru) * 1999-07-07 2001-04-27 Уральский государственный технический университет Ковшовый ленточный конвейер для горячих материалов
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CN2789697Y (zh) * 2005-04-30 2006-06-21 洛伊热工工程(天津)有限公司 台车炉砂封装置
CN200979368Y (zh) * 2006-11-28 2007-11-21 黄开元 燃煤往复炉排抽屉瓷窑
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393904A (en) * 1965-07-02 1968-07-23 Huntington Heberlein And Compa Travelling grate sintering apparatus and the like
US3381949A (en) * 1965-11-26 1968-05-07 Mcdowell Wellman Eng Co Floating seal for a travelling grate machine
US3367644A (en) * 1966-02-07 1968-02-06 Mcdowell Wellman Eng Co Liquid trough seal
US3744777A (en) * 1969-10-20 1973-07-10 F Marsh Sintering machines
US3795305A (en) * 1973-01-22 1974-03-05 Universal Ind Bucket conveyor system
US4129209A (en) * 1976-01-27 1978-12-12 Friedrich Mayfeld Bucket elevator
US4408987A (en) * 1982-01-20 1983-10-11 Dravo Corporation Circular traveling grate machine for process requiring minimum gas leakage
US4825561A (en) * 1984-05-29 1989-05-02 Owens-Corning Fiberglas Corporation Curing oven apparatus
WO2007065582A2 (de) 2005-12-07 2007-06-14 Siemens Vai Metals Technologies Gmbh & Co Förderanlage, anlagenverbund und verfahren zur kopplung von metallurgischen verfahren

Non-Patent Citations (1)

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Title
International Search Report, Nov. 26, 2012, ISA/EPO.

Also Published As

Publication number Publication date
KR101701579B1 (ko) 2017-02-01
DE202011051470U1 (de) 2011-11-04
CN104105936B (zh) 2016-06-01
RU2014111747A (ru) 2015-10-10
CN104105936A (zh) 2014-10-15
US20140311870A1 (en) 2014-10-23
RU2614912C2 (ru) 2017-03-30
MY167910A (en) 2018-09-26
UA111502C2 (uk) 2016-05-10
WO2013045529A1 (de) 2013-04-04
KR20140077942A (ko) 2014-06-24

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